Data Structures and Algorithms in Java
Data Structures and Algorithms in Java
6th Edition
ISBN: 9781118771334
Author: Michael T. Goodrich
Publisher: WILEY
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Chapter 2, Problem 21C

Write a program that consists of three classes, A, B, and C, such that B extends A and that C extends B. Each class should define an instance variable named “x” (that is, each has its own variable named x). Describe a way for a method in C to access and set A’s version of x to a given value, without changing B or C’s version.

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Problem 12. Consider the following grammar: <S> → a <S> c <B> | <A> | b <A> → c <A> | c <B> → d | <A> Which of the following sentences are in the language generated by this grammar? a. abcd b. acccbd c. acccbcc d. acd e. accc
Problem 6. Using the grammar in Example 3.2, show a parse tree and a leftmost derivation for each of the following statements: a. A = A * (B + (C * A))
Problem 8. Prove that the following grammar is ambiguous: <S> → <A> <A> → <A> + <A> | <id> <id> → a | b | c

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